package superkeyword;

public class Father {

    protected String firstName = "张";

    public String getFirstName() {
        return firstName;
    }

    public void setFirstName(String firstName) {
        this.firstName = firstName;
    }

    public void fn(){
        System.out.println("我是Father fn()...");
    }

    Father(){

        System.out.println("Father Constructor is run...");
    }

    Father(String firstName){
        this.firstName = firstName;
    }
}
